black diamond n. The competition has got tougher, but with this emerging market—the “black diamonds” as they’re called in the trade—people are buying homes, moving into homes, and upgrading. I think that market is in its infancy—it’s going to continue to grow. [EnglishSouth AfricaMoney & Finance] [full cite] (Jun. 1, 2007)
black dog syndrome n. But black dogs? While searching for a companion for George Bailey, Gregg was shocked to see a banner on an Ohio animal shelter’s Web site that detailed how tough it is for big dogs with black coats to find homes.…To the uninitiated, the idea seems so strange—doggie discrimination? But among those in animal rescue circles, the phenomenon is commonplace enough to have earned its own name: “black dog syndrome.” [EnglishAnimals, Insects, & Birds] [full cite] (Mar. 13, 2008)
black dollar n. He said high-ranking CID officers were protecting people who deal in counterfeit currency commonly called “black dollars” who have taken to conning civilians like nuns of huge sums of money. [EnglishUgandaCrime & PrisonsMoney & Finance] [full cite] (Jun. 29, 2006)
black dust n. We smoke black dust. That’s embalming fluid. So you drink milk with it ‘cause, you know, later, for your stomach. [EnglishDrugs] [full cite] (Jul. 18, 2005)
black fish n. Share fishermen, who are classified self-employed, receive a share of the profits or gross earnings of a fishing boat but research from HM Revenue and Customs (HMRC) has revealed that share fishermen often don’t save for tax and national insurance, and this can cause difficulty when the tax bill finally arrives. There have been several prosecutions brought over what has been labelled “black fish’ caught without any tax being paid. [EnglishUnited KingdomAnimals, Insects, & BirdsCrime & PrisonsJargon] [full cite] (May. 24, 2007)
black gang n. Schutz was part of the first group of sailors, also known as “plank owners”, to board the ship on its maiden voyage in 1943. His work detail manned and operated the engine room, better known as the “black gang.” [EnglishNautical] [full cite] (May. 8, 2007)
black gun n. Ralph Langevin, the gun backer of Story’s Sports Shop in Laconia, said as the election gets closer and closer he has seen a real hike in sales of assault-style weapons—or “black guns” as they are called in the retail community. [EnglishFirearms] [full cite] (Jul. 8, 2008)
Black Monday n. Many have taken to calling the benchmark “Black Monday”—piggybacking on “Black Friday,” the longtime nickname of the day after Thanksgiving, historically the day when sales pushed money-losing stores into the black. [ LanguageEnglish SubjectBusiness] [full cite] (Nov. 28, 2005)
black mulch n. Rows of black plastic stretch across the fields of eastern Hillsborough County. The plastic, affectionately called black mulch by farmers, marks where 8,000 acres of strawberry plants will soon blossom. [EnglishAgriculture] [full cite] (Oct. 9, 2006)
black plate n. This impulse to crush manifested itself at first in remote control cars before it found expression in karts. Novice racers begin in what is known as the black plate category. Drivers are required to complete six races before progressing to the next level. [EnglishAutomobiles & TransportationSports & Recreation] [full cite] (Mar. 19, 2007)